Excel Tables vs Ranges: What Ctrl+T Actually Changes
By Michael Nocito , data analyst · Published August 8, 2026 By the end of this page you can turn a list into a real Excel table, write formulas that…
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Excel Dynamic Arrays: FILTER, UNIQUE and SORT in One Formula
By Michael Nocito , data analyst · Published August 8, 2026 By the end of this page you can pull a distinct list out of a column, extract every row…
Excel Drop Down Lists and Data Validation, and the Paste That Removes Them
By Michael Nocito , data analyst · Published August 8, 2026 By the end of this page you can put a dropdown on a column in about a minute, keep its l…
How to Connect Excel to a SQL Database (And Stop Pasting)
By Michael Nocito , data analyst · Published August 8, 2026 By the end of this page your spreadsheet will pull its numbers straight from a database,…
Excel Just Summed Your ID Numbers and Said Nothing
By Michael Nocito , data analyst · Published August 7, 2026 This article gives you the test that catches the most common beginner mistake in pivot t…
openpyxl writes formulas. It never evaluates them — so your generated spreadsheet can be silently wrong.
Here is a test that passes, on a workbook that is wrong. from openpyxl import Workbook , load_workbook wb = Workbook () ws = wb . active ws [ " A1 "…
Exporting BibTeX to CSV/Excel/JSON/HTML
Sometimes you don't want a formatted bibliography, you want your bibtex as a spreadsheet or a JSON array you can pipe into something else. Four sepa…
Convert a JSON API Response to Excel: 3 Ways (No-Code, Python, Power Query)
You call an API, get back JSON, and someone non-technical asks for it "in Excel." Here are three ways to do that — pick based on whether it's a one-…
Starting with Excel: How it transforms data to insights.
Introduction Excel is a powerful spreadsheet program developed by Microsoft that is used to calculate, organize and analyze data. It provides a way…
How Excel is Used in Real-World Data Analysis
Before this week, I thought Excel was just a fancy calculator with boxes. But after three days of my Data Science & Analytics course, I realise…
How Excel Is Used in Real-world Data Analysis
When I started my Data Science and Analytics course a week ago, I expected to spend most of my time learning programming languages and building mach…
How Excel is Used in Real-World Data Analysis
Prior to taking this course, I believed that Excel was simply another table. A common place where people left numbers when they were not sure what t…
Openpyxl's Relevance for Freelance Data Cleaning and Automation in 2023: Addressing Concerns and Solutions
Introduction: The Question of Relevance Imagine you’re a college student, fresh off mastering pandas , and you’re eyeing the freelancing market for…
How to build a reusable Excel export service in ASP.NET Core
This article will teach you how to export any list into Excel in C# using the ClosedXML library. Steps to complete Create the data model with dummy…
Tabula vs Camelot vs pdfplumber in 2026: Which Python Library Actually Wins?
When you need to extract tables from PDFs in Python, three libraries dominate every Stack Overflow answer and tutorial from the past few years: Tabu…
How to Convert Bank Statement PDFs to Excel: The Complete 2026 Guide
If you work in accounting or bookkeeping, you have probably spent hours copying transaction data from PDF bank statements into Excel. It is tedious,…